At this point there are already three variants of optimization algorithms, oriented at the Inventory Routing Problem, based on the GRASP metaheuristic capable of solving instances of one vehicle and one product with reasonable GAP and multi products one vehicle with more GAP than desired for most of the instances. The algorithms were developed in c++ and are being compared with a benchmark for the Multi-vehicle Multi-product Inventory Routing Problem. Tests are being made to access computational times affinity with solution improvement. The developed work is within the planned schedule able to consult at http://gnomo.fe.up.pt/~ee10089/SIEM
